Table 3.

Descriptive statistics

	District 1		District 1		District 2		District 2		District 3		District 3
	Rings 1 and 2		Rings 1, 2, and 3		Rings 1 and 2		Rings 1, 2, and 3		Rings 1 and 2		Rings 1, 2, and 3
	N = 16		N = 49		N = 19		N = 75		N = 20		N = 69
	T0	T1	T0	T1	T0	T1	T0	T1	T0	T1	T0	T1
Number of contacts
Avg. degree	5.13	7.56	5.79	7.00	4.00	5.53	4.25	4.31	4.81	6.20	4.68	5.26
Density (%)	34	51	12	15	22	31	6	6	19	33	7	8
E-I index
Ring 1
Internal avg. degree	4.8	7.5			3.6	5.1			2.0	3.8
Internal contacts	26	38			42	56			8	14
External contacts	32	44			28	43			38	51
Ring 2			N.A.				N.A.				N.A.
External avg. degree	4.0	5.5			2.4	3.7			2.3	3.2
Internal contacts	20	22			24	24			102	98
External contacts	32	44			28	43			38	51
E-I index
E-I index ring 1	0.10	0.07			−0.20	−0.13			0.65	0.57
E-I index ring 2	0.23	0.33			0.08	0.28			−0.46	−0.32
Collaboration
Reciprocity (%)	49	64	N.A.		25	27	N.A.		40	53	N.A.
Diversity of contacts
Mean	0.32	0.42			0.36	0.42			0.26	0.32
(SD)	(0.17)	(0.14)	N.A.		(0.15)	(0.19)	N.A.		(0.17)	(0.14)	N.A.
Paired T test
t p value	−4.39	< 0.001			2.05	0.055			0.91	0.371
Value of contacts
Mean			7.3	7.7			7.6	7.8			7.5	7.5
(SD)	N.A.		(0.67)	(0.47)	N.A.		(0.61)	(0.65)	N.A.		(0.64)	(0.58)
Paired T test
t p value			−1.28	0.209			−2.35	0.022			−1.12	0.267